Mr. Wire Fox Calculator


Mr. Wire

The Fox Calculator is an upgrade of the beloved out-of-production Mellowtone Wolf Computer. Crunch, pitches, oscillation, arpeggiation, motorbotoration. Even some fuzzy overdrives! The Fox Calculator features upgrades from the original: RF protection, higher quality audio and power jacks, and a mod for no oscillation bleeds-thru when the pedal's off.


  • Voltage
  • Bias
  • Fuzz
  • Level


  • Built in the US.
  • Warranty: Never pay for parts or labor.
  • Built with the highest quality parts available.
  • Quality wiring and PCB
  • 3.7" x 4.7"
  • 9v negative tip adapter power. No batteries.

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